10 #if defined(__FreeBSD__) || defined(__OpenBSD__)
11 #include <sys/disklabel.h>
12 #include <sys/ioctl.h>
13 static int diskdev[] = {
29 4, /* da on FreeBSD 5 */
32 isdisk(struct stat *st)
36 if(!S_ISCHR(st->st_mode))
38 dev = major(st->st_rdev);
39 for(i=0; i<nelem(diskdev); i++)
44 #define _HAVEDISKLABEL
47 #if defined(__linux__)
48 #include <linux/hdreg.h>
50 #include <sys/ioctl.h>
52 #define major(dev) ((int)(((dev) >> 8) & 0xff))
54 disksize(int fd, int dev)
58 struct hd_geometry geo;
60 memset(&geo, 0, sizeof geo);
64 if(ioctl(fd, BLKGETSIZE64, &u64) >= 0)
67 if(ioctl(fd, BLKGETSIZE, &l) >= 0)
69 if(ioctl(fd, HDIO_GETGEO, &geo) >= 0)
70 return (vlong)geo.heads*geo.sectors*geo.cylinders*512;
76 #if !defined(__linux__) && !defined(__sun__)
80 int _p9usepwlibrary = 1;
82 * Caching the last group and passwd looked up is
83 * a significant win (stupidly enough) on most systems.
84 * It's not safe for threaded programs, but neither is using
85 * getpwnam in the first place, so I'm not too worried.
88 _p9dir(struct stat *lst, struct stat *st, char *name, Dir *d, char **str, char *estr)
92 static struct group *g;
93 static struct passwd *p;
101 memset(d, 0, sizeof *d);
104 s = strrchr(name, '/');
114 if(*str + strlen(s)+1 > estr)
119 *str += strlen(*str)+1;
125 if(p && st->st_uid == uid && p->pw_uid == uid)
127 else if(_p9usepwlibrary){
128 p = getpwuid(st->st_uid);
131 if(p == nil || st->st_uid != uid || p->pw_uid != uid){
132 snprint(tmp, sizeof tmp, "%d", (int)st->st_uid);
138 if(*str+strlen(s)+1 > estr)
143 *str += strlen(*str)+1;
148 if(g && st->st_gid == gid && g->gr_gid == gid)
150 else if(_p9usepwlibrary){
151 g = getgrgid(st->st_gid);
154 if(g == nil || st->st_gid != gid || g->gr_gid != gid){
155 snprint(tmp, sizeof tmp, "%d", (int)st->st_gid);
161 if(*str + strlen(s)+1 > estr)
166 *str += strlen(*str)+1;
174 d->qid.path = ((uvlong)st->st_dev<<32) | st->st_ino;
176 d->qid.vers = st->st_gen;
179 d->qid.vers = st->st_mtime + st->st_ctime;
180 d->mode = st->st_mode&0777;
181 d->atime = st->st_atime;
182 d->mtime = st->st_mtime;
183 d->length = st->st_size;
185 if(S_ISDIR(st->st_mode)){
190 if(S_ISLNK(lst->st_mode)) /* yes, lst not st */
191 d->mode |= DMSYMLINK;
192 if(S_ISFIFO(st->st_mode))
193 d->mode |= DMNAMEDPIPE;
194 if(S_ISSOCK(st->st_mode))
196 if(S_ISBLK(st->st_mode)){
198 d->qid.path = ('b'<<16)|st->st_rdev;
200 if(S_ISCHR(st->st_mode)){
202 d->qid.path = ('c'<<16)|st->st_rdev;
204 /* fetch real size for disks */
206 if(S_ISBLK(st->st_mode) && (fd = open(name, O_RDONLY)) >= 0){
207 d->length = disksize(fd, major(st->st_dev));
211 #ifdef _HAVEDISKLABEL
214 struct disklabel lab;
216 if((fd = open(name, O_RDONLY)) < 0)
218 if(ioctl(fd, DIOCGDINFO, &lab) < 0)
220 n = minor(st->st_rdev)&7;
221 if(n >= lab.d_npartitions)
224 d->length = (vlong)(lab.d_partitions[n].p_size) * lab.d_secsize;